Latch.



l \\D,.W.` TOWER.

LATCH. l AAPPLICATION FILED M-Y 15, 1908.k

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3M 17, WH ,In 'KG/l) ings. Third, to provide an improved latch wry simple in form and in the'arrange an improved latch, the part-sof which are structural details, will deti'nitely` appear specification, in which,

.one side the fiange 4 is provided with a slot Y nixiizrwgiowna, QFGRND airmail/riemen. l l j.

" y Laren."

` Specification of Letters Patent. l Application filed `May 15, 19Q8. Serial No. 433,032.

Ne. 900,800. Il

To` all 'wh/nn fit. Miyroncern: t l

,Bc it known that` I, DANiEL W. Townn, a citizen of the lfnited vStates, `residing at the city ot' (traint ltapids',coiinty of Kent, State 'ot Michigan, have inventedcertain new and useful improvements in Latches, of Which the t'ollo'\\'iiig is a'siecicationf This` invention relates to improvements in latches. y i

The inain objects of ythis invention are:' First, to providean improvedlatch which nient of its parts, aiid, atthe same time, is a desirable structure. Second, to provide made n p almost wholly of sheet metal stampwliirh is `very economical to produce, and, at the same time, fone which is attractivein appearance.

Further objects, and objects relating to from the detailed description to tol-low.

I accomplish the objects ofmy invention by the devices and means described inthe following specification'. t i

The inventionis clearly defined and pointed out in the claims. i i

A structure embodying the featuresvof my invention yis clearly illustrated inthe accompanying drawing, forming a part of this;

Figure 1 is avdetail levation "of a stride# ture embodyiiigvthe features of lmy invention. Fig. 2 isrja vertical section taken on a line corresponding to line 2--2 of Fig. 1. Fig. 3 is an inverted plan of my improved latch. Fig. Axis anl enlarged detail, taken on a. line corresponding toline /i--4 of Fi i 3, showing means for retaining thelatc' spring. Fig. 5 is atdetailsectilon taken'on a. hne corresponding to lirico-yeti of Fig 2, showing animproved latch strike. i

In the drawing, similar nulinerals of ref#4 erence refer to similar parts tliifoughout the several views, and the sectional views are taken'looking' in the direction of the little arrows at the ends of the section liiiei.v

Referring tothe drawing, l representsl a door and 2 a dom-casing, my `improved latch, being shown inA Figs. 1 and 2in its; operative relation. The latch plate is provided with an intnri'icd fian'ge 4 forming` the latch casing.. These are formed preferably of an integral sheet metal stamping. 011g 1 bolt spring 5, the inner edge of the slot being located in the'same plane as'tlie inner face of `the latch plate, as clearly appears from the drawing. The latch plate is provided with. y suitable holes 6 to receive the screws, as by, which' 4the casing is secured to the door. The laten bolt 8 is pivotallv mounted on the inner end of the-stem '9 ofthe knob 10, so that it rests against the inside o'f the latch plate. ,JLThe stem 9 ispreferably provided with `a-shonlder 13 so that, in assemblingr the parts, the stem is arranged through the latch plate and the latch bolt and its inner end riveted,thereby securing the latch bolt lin position.. 4 The latch bolt is'y preferably `provided at .one side of its inner end Witha spring-securing finger 14 and at its inner-ends with a springvretaining lug 15, the lug being oiiset, as clearly appears in Fig. 4, so that theflatch l16 may be arranged `between the lug and the latch plate. The inner end of the latch bolt 8 is preferably' enlarged, as illustrated, to form a better fulcrum for the Lspring, one end of which is secured ,by ,the

securing Afinger 14, itsv 'free end being arran ed under the retaining 'lug `15 to bear against the latch plateiiange. The latch bolt andthespring securing finger and retaining lugs are preferably an integral sheet metal stamping, as illustrated. The finger -14 is foiinedtb slitting the metal and the spring is' inser ed between it andthe body of the latch bolt, and the spring finger swageddown thereon. This'forms asmple andeectveeineans for securing the spring and reduces the number of theparts to a minimum.

The iglilrcture is very simple and economical to produce., and, with the exception of the `im s three siii-.et metal stampings,which makes it very liitfht and v )i inexpensive lin the matter `of' niaterial; 'a so, `in the cost of manuactliiinlrv and assembling the parts.- At the same (iride pears-nee and desirable for the purpose 1ntendecl.

I yprefeiably tise my im roved latch in connection with an improve strike comprising a base plate i7 having an arm 18 with a longitudinal slot 19 therein. rlhe engaging stem `and the spring, is made of.

, the sructurc is attractive in ap membri; 20 of t the strike is' adjustably sel cured by means of the set screw 2l, which is arranged `inthe slot 19. `0n the inner end of the engaging member 2() is a lng 22 ,adapted to engage in'the slot., so that. the one screw 21 effectively secuges the adjustable engaging .member in posi ion.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is:

1. The .combination with a casing comprising a latch plate havingv an inturned flange at its edges, said llan'ge having a slot therein at one side, said latch plate and llange being an integral sheet metal stamp ing; a latch bolt provided with a springsecuring finger at one side and a projecting offset spring retaining lug at its inner end, said latch, spring-securing linger and retainin lug being an integral sheet metal stamping; a spring secured to said latch bolt,

at one end by swaging said spring-securin finger thereon and -arranged between sai spring-retaining lug and saidlatch plate with its free end in engagement with said latch plate lange; and a knob stem pivoted in said latch plate, said latch bolt being arranged through said slot vin said flange, the ends of which serve as stops therefor.

2. The combination with a casing comprising a latch plate having an inturned l flange at its edges, said flange having a slot therein at one side; a latch bolt provided with a spring-securing finger at one side and a projecting ollset spring retaining lug at its inner end; a spring secured to said latch bolt at one end by swaging said springsecuring linger `thereon and arranged between said spring retainin lug and said latch plate with Aits free en in en agement with said latch plate flange; an a knob stein pivoted in said latch plate, said latch bolt being arranged through said slot in said flange,- the ends of which serve as stops there- 3. The"lombination with a casing comprising a latch plate having an inturned flange at its edges, said flange having a'slot therein at one side, said latch plate and flange being an integral sheet metal stamping; a latch bolt provided with a spring securing linger at one side and a projectin oliset spring retaining lug at its inner en said latch spring-securing linger and retaining lug being an inte ral sheetmetal stamping; a spring secure to, said latch bolt at one end by said spring-securing linger and engaged under said spring retaining lug; and a knob stem pivoted in said. latch plate, said latch bolt being secured/to said stem said latch bolt being arranged through said slot in said flange. f

4. The combination with a casing coinprising a' latch plate having an intuined flange 'at its edges, said flange having a slot therein at one side; a latch bolt provided with a-spring-securing finger at one side and a projecting offset spring retainin lug at its inner end; a spring secured to sai latch holt at one end by said spring-securing nger and Yengaged under said spring retaining lug; and a knob stem pivoted in said latch plate, said latch bolt being secured to said stem, said latch bolt being arranged through said slot in said llange.

5. The combination with a casing coinrising a latch y'plate having an inturned ange at its edges, said flange having a slot therein at one side; a latch bolt having a spring retainingl lug at its inner end; a spring secured to said latch bolt at one end and arranged between said spring retaining lug and said latch late with its free end in ,engagement with said latch plate flange; and a knob stein pivoted in said latch plate, said latch bolt being arran ed through said slot in said flange, the ends of which serve as stops therefor.

6. The combination with a casing comprising a latch plate having an intnrned llange at its edges,- said flange having a slot therein at one side; a latch bolt having a spring retaining lug at its inner end; a spring secured to said latch bolt at one end and arranged under said lspring retaining lu with its free end in en agement with said latch late flange; and a mob stem pivoted in said latch plate, said latch bolt being secured to said stem.

7. The combination with, a casing comprising a latch plate h'avingl an inturned lange at its edges, said flange having a slot therein at one side; a latch bolt; a spring Y DANIEL W. TOWER. p [n al Witnesses:

H. M. Bna'rniisoN, 1 P. C. PECKHAM.

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